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Turn your hardest vocabulary words into a quiz with AI

Upload a PDF, slides, notes or a photo of a word list. DeckOwl writes multiple-choice, true/false and short-answer questions with explanations, so you see why each answer is right.

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Why a generic word list is not enough for hard vocabulary

Advanced words like laconic or obfuscate rarely stick after one reading, and a difficult vocabulary quiz works because it forces you to recall a meaning instead of recognizing it. Generic lists rarely match the words in your reading, so the drill misses what you actually need.

Use the exact words from your reading list, not a generic test set.
Mix multiple choice with short answer so you must recall the meaning, not just spot it.
Read the explanation for every miss, including the word root when one helps.
Repeat the missed words after a day or two rather than cramming the whole list.

Example difficult vocabulary quiz questions

What does 'laconic' mean? A) talkative B) using few words C) angry D) well-traveledB) using few words. Laconic speech is brief and to the point, named after Laconia, the region of ancient Sparta whose people were known for terse talk.

True or false: 'ephemeral' describes something that lasts forever.False. Ephemeral means lasting a very short time, from a Greek root meaning lasting a day.

What does 'obfuscate' mean? A) clarify B) make unclear C) repeat D) praiseB) make unclear. Obfuscate means to hide meaning on purpose, so the message becomes harder to understand.

True or false: 'mitigate' means to make something worse.False. Mitigate means to lessen the severity of something, which is the opposite of aggravate.

What does 'pernicious' mean? A) harmless B) harmful in a slow, subtle way C) sudden D) ancientB) harmful in a slow, subtle way. Pernicious describes influences that damage gradually, such as a pernicious habit that wears down health over years.

Generate the full set

Questions from your own words

Upload a word list, reading passage or lecture slides and get questions built only from that material.

Explanations for every answer

Each question shows the correct answer and why, so a missed word also teaches you its meaning and root.

Three question types

Choose multiple choice, true/false or open short answer, and mix them to test both recognition and recall.

How it works

Upload your material

Add a PDF, DOCX, PPTX, plain text or a photo of a page. Text recognition reads printed pages.

Pick question types

Select multiple choice, true/false or short answer and generate the quiz in one pass.

Take the quiz and review

Answer in the browser, read the explanations for your misses, and regenerate from the words you still get wrong.

Good practice pairs each hard word with a context sentence. Multiple-choice distractors should be close in meaning, such as obfuscate versus clarify, so you learn the nuance rather than guessing. True/false items catch confusion between near-synonyms.

DeckOwl builds these questions from your own material, with an explanation on each answer. Spaced practice on the same words over several days helps them move into long-term memory. Exports to Anki or CSV are available on paid plans.

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Frequently asked questions

How many words should a difficult vocabulary quiz cover?

Start with 15 to 25 words from one reading or unit, since that set is small enough to review in one sitting. Add more once you can recall most of them without help.

Is it better to quiz on definitions or on words in context?

Use both. Definition questions check meaning, while context sentences show whether you can apply the word in reading and writing.

Can I export the quiz to another app?

Exports are paid features: PDF, DOCX, Anki and CSV export are on Plus, and QTI 2.1 and Moodle XML export are on Pro.

Does the free plan include quizzes?

Yes. The free plan includes 3 generations per month and lets you study in the browser, though exports need a paid plan. No credit card is needed to start.

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Keep exploring the topic

Review the main ideas visually or practice recalling them.